Part 3: Adjustment
3-19
3. OPTICAL ADJUSTMENTS
Before taking optical adjustments below, remove the Cabinet Top following to the
“Mechanical Disassemblies”.
Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust
Integrator lens or Relay lens adjustment, you need to disconnect FPC cables of LCD
panels on the main board.
Optical adjustment requires a 2.0mm hex wrench and a slot screwdriver.
3.1 Contrast Adjustment
[Before adjustment]
Input a 100% of black raster signal.
1. Loosen a screw
A
(Fig.3-11/3-12) on the polarized
glass mounting base which you intend to adjust.
2. Turn the polarized glass mounting base as shown in
Fig.3-11, adjust the slot
B
to obtain the darkest
brightness on the screen by using a slot screwdriver.
3. Tighten the screw
A
to fix the polarized glass
mounting base.
Repeat steps 1 to 3 for remaining polarized glasses.
Do not disconnect connectors on the main board, because the projector
cannot turn on due to operate the power failure protection.
CAUTION
Fig. 3-12
Polarized glass
mounting base
A
Fig. 3-11
R-Polarized Glass
Mounting Base
B-Polarized Glass
Mounting Base
G-Polarized Glass
Mounting Base
A
A
A
Main Board
Slot B
Summary of Contents for LV-7215U
Page 9: ...Part 1 General Information ...
Page 25: ...Part 2 Repair Information ...
Page 43: ...Part 3 Adjustment ...
Page 66: ...Part 4 Troubleshooting ...
Page 78: ...Part 4 Troubleshooting 4 12 AN5870 RGB SYNC SW IC1201 IC5201 BA7078 Sync Separator IC5341 ...
Page 80: ...Part 4 Troubleshooting 4 14 CXD3536 LCD Driver IC401 FA5502 P F Control IC621 ...
Page 81: ...Part 4 Troubleshooting 4 15 M62392 M62393 D A IC6271 IC281 ML60851 USB Driver IC9801 ...
Page 83: ...Part 4 Troubleshooting 4 17 TC90A69F Y C Separator IC2101 ...
Page 84: ...Part 5 Parts Catalog ...
Page 85: ......
Page 99: ...Part 6 Electrical Diagrams ...